Table 2.

Clinical outcomes comparing 117 subjects with successful NIPPV (Group A), initial NIPPV with subsequent transition to invasive mechanical ventilation (Group B) and initial indication to IMV (Group C).

	Group A (n = 96)	Group B (n = 13)	Group C (n = 8)
Need for ICU	46 (48)	13 (100)*	7 (88)
Length of ICU stay, days	0 (0–102)	12 (2–49)*	15 (0–44)†
Length of hospital stay, days	15(3–105)	28 (10–52)*	24 (1–74)
In-hospital mortality	18 (19)	7 (54)*	5 (63)†
1-year mortality	9 (12)	0 (0)	0 (0)

Values are presented as mean ± SD or median (minimum–maximum), and absolute number (frequency %). Definition of abbreviations: NIPPV, noninvasive positive pressure ventilation; ICU, intensive care unit.

^*p < 0.05 between Group A and Group B.

^†p < 0.05 between Group A and Group C.